[Exim] Frozen messages.

Hi there!

Well, I'm new using EXIM, I use to use Smail 3.xx, and I shut say that's exim is very good, but I'm having a little problem, my MailHost has a lot of trafic, and there are some messages that are marked as frozen and they stay on the queue for a long time, I would like to know who can I do, for return this messages automaticly to the sender after X days of be in the queue ? I have set 5 days max for delivery a messages, but Exim don't aply this rule to this ones (the frozen messages).


Maikel